diff --git a/examples/stm32f7/src/bin/usart_dma.rs b/examples/stm32f7/src/bin/usart_dma.rs new file mode 100644 index 000000000..82af0bc22 --- /dev/null +++ b/examples/stm32f7/src/bin/usart_dma.rs @@ -0,0 +1,30 @@ +#![no_std] +#![no_main] +#![feature(type_alias_impl_trait)] + +#[path = "../example_common.rs"] +mod example_common; +use core::fmt::Write; +use embassy::executor::Spawner; +use embassy_stm32::dma::NoDma; +use embassy_stm32::usart::{Config, Uart}; +use embassy_stm32::Peripherals; +use embassy_traits::uart::Write as _Write; +use example_common::*; + +use heapless::String; + +#[embassy::main] +async fn main(_spawner: Spawner, p: Peripherals) { + let config = Config::default(); + let mut usart = Uart::new(p.UART7, p.PA8, p.PA15, p.DMA1_CH1, NoDma, config); + + for n in 0u32.. { + let mut s: String<128> = String::new(); + core::write!(&mut s, "Hello DMA World {}!\r\n", n).unwrap(); + + unwrap!(usart.write(s.as_bytes()).await); + + info!("wrote DMA"); + } +}